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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2026
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| Online Access: | https://doi.org/10.1594/PANGAEA.993036 |
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| _version_ | 1867168243067650048 |
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| author | Tung, Chueh-Chen Beermann, Jan Sander, Lasse Gutow, Lars |
| author_facet | Tung, Chueh-Chen Beermann, Jan Sander, Lasse Gutow, Lars |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Sediment were sampled on expedition HE625 of the R/V Heincke in July 2023 at 50 stations spread evenly over the muddy sediment region in southeast of the island of Helgoland (southeastern North Sea). At each station, two replicate samples were taken with a van Veen grab with a sampling area of 0.1 m² and a penetration depth of 10 cm. A subsample of the upper 6 cm of sediment was taken using a coring tube from the second grab with a diameter of 4.5 cm. The grain-size distribution was determined based on laser-diffraction granulometry using a CILAS 1180L particle size analyzer. Another sub-sample of 40 g of sediment were dried, weighed, and incinerated at 500 °C for five hours to estimate the organic content (%) as weight loss on combustion. Sediment variables included organic carbon content (OC), sediment composition (percentages of sand, silt, and clay), grain size (d10, d50, d90), and statistical measures of sediment grain size distribution (skewness, sorting, kurtosis). |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_993036 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Sediment characteristics in the muddy region in southeast of the island of Helgoland (North Sea) Tung, Chueh-Chen Beermann, Jan Sander, Lasse Gutow, Lars Clay; DATE/TIME; Event label; Grab; GRAB; Grain-size analyses; Gravel; HE625; HE625_150-1; HE625_151-1; HE625_152-1; HE625_153-1; HE625_154-1; HE625_155-1; HE625_156-1; HE625_157-1; HE625_158-1; HE625_159-1; HE625_160-1; HE625_161-1; HE625_163-1; HE625_164-1; HE625_165-1; HE625_166-2; HE625_167-1; HE625_168-1; HE625_169-1; HE625_170-1; HE625_171-1; HE625_29-2; HE625_30-1; HE625_31-1; HE625_32-1; HE625_33-1; HE625_34-1; HE625_35-1; HE625_36-1; HE625_37-1; HE625_38-1; HE625_39-1; HE625_40-1; HE625_41-2; HE625_42-2; HE625_43-1; HE625_44-1; HE625_45-2; HE625_46-1; HE625_47-1; HE625_48-1; HE625_49-1; HE625_50-2; HE625_51-1; HE625_52-1; HE625_53-1; HE625_54-1; HE625_55-1; HE625_56-1; HE625_57-1; Heincke; Ignition loss at 500°C; Kurtosis; LABEL; Laser diffraction particle size analyzer, CILAS, 1180L; LATITUDE; LONGITUDE; Median, grain size; North Sea; Organic carbon; Organic matter; Percentile 10; Percentile 90; Sand; sediment analysis; Silt; Skewness; Sorting; Station label Sediment were sampled on expedition HE625 of the R/V Heincke in July 2023 at 50 stations spread evenly over the muddy sediment region in southeast of the island of Helgoland (southeastern North Sea). At each station, two replicate samples were taken with a van Veen grab with a sampling area of 0.1 m² and a penetration depth of 10 cm. A subsample of the upper 6 cm of sediment was taken using a coring tube from the second grab with a diameter of 4.5 cm. The grain-size distribution was determined based on laser-diffraction granulometry using a CILAS 1180L particle size analyzer. Another sub-sample of 40 g of sediment were dried, weighed, and incinerated at 500 °C for five hours to estimate the organic content (%) as weight loss on combustion. Sediment variables included organic carbon content (OC), sediment composition (percentages of sand, silt, and clay), grain size (d10, d50, d90), and statistical measures of sediment grain size distribution (skewness, sorting, kurtosis). |
| title | Sediment characteristics in the muddy region in southeast of the island of Helgoland (North Sea) |
| topic | Clay; DATE/TIME; Event label; Grab; GRAB; Grain-size analyses; Gravel; HE625; HE625_150-1; HE625_151-1; HE625_152-1; HE625_153-1; HE625_154-1; HE625_155-1; HE625_156-1; HE625_157-1; HE625_158-1; HE625_159-1; HE625_160-1; HE625_161-1; HE625_163-1; HE625_164-1; HE625_165-1; HE625_166-2; HE625_167-1; HE625_168-1; HE625_169-1; HE625_170-1; HE625_171-1; HE625_29-2; HE625_30-1; HE625_31-1; HE625_32-1; HE625_33-1; HE625_34-1; HE625_35-1; HE625_36-1; HE625_37-1; HE625_38-1; HE625_39-1; HE625_40-1; HE625_41-2; HE625_42-2; HE625_43-1; HE625_44-1; HE625_45-2; HE625_46-1; HE625_47-1; HE625_48-1; HE625_49-1; HE625_50-2; HE625_51-1; HE625_52-1; HE625_53-1; HE625_54-1; HE625_55-1; HE625_56-1; HE625_57-1; Heincke; Ignition loss at 500°C; Kurtosis; LABEL; Laser diffraction particle size analyzer, CILAS, 1180L; LATITUDE; LONGITUDE; Median, grain size; North Sea; Organic carbon; Organic matter; Percentile 10; Percentile 90; Sand; sediment analysis; Silt; Skewness; Sorting; Station label |
| url | https://doi.org/10.1594/PANGAEA.993036 |